Though if you know how to play, also if you are pro on it but the problem is emotion then it is like a newbie that has no knowledge at all because of emotion youll end up losing everything. Greediness would lead you to loss because you set your mind to bet more and more so that you could gain back your losses but end up lossing too.
First of all, bitcoin is not suggetable to involve in gambling. Some of the people cannot be consider gambling as entertainment part. Actually if you good in betting or poker games then you can use the fall into this else you need to little away.